private void FlickrRequest_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
if (e.Error != null)
{
MessageBox.Show(e.Error.Message);
}
else
{
this.FeatureSets.Remove(flickrsSet);
FlickrResult frResult = FlickrResult.Deserialize(e.Result);
flickrsSet = new GeoFeatureCollection("title,photoUrl,ownerName,dateTaken", "Title,Photo,Owner,Date", "title", "Flickr");
if (frResult != null && frResult.photoPage != null && frResult.photoPage.photos != null)
{
foreach (FlickrPhoto item in frResult.photoPage.photos)
{
Graphic graphic = new Graphic();
graphic.Geometry = (new MapPoint(item.longitude, item.latitude, new SpatialReference(4326))).GeographicToWebMercator();
graphic.Attributes.Add("title", item.title);
graphic.Attributes.Add("photoUrl", item.photoUrl);
graphic.Attributes.Add("ownerName", item.ownerName);
graphic.Attributes.Add("dateTaken", item.dateTaken);
graphic.Symbol = flickrSymbol;
graphic.MapTip = flickrTipTemplate;
graphicsLayer.Graphics.Add(graphic);
flickrsSet.Add(graphic);
}
this.FeatureSets.Add(flickrsSet);
this.ToggleWidgetContent(1);
}
}
this.IsBusy = false;
}
private void TwitterRequest_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
if (e.Error != null)
{
MessageBox.Show(e.Error.Message);
}
else
{
this.FeatureSets.Remove(twitterSet);
TwitterResult twResult = TwitterResult.Deserialize(e.Result);
twitterSet = new GeoFeatureCollection("title,photoUrl,authorUri,content", "Title,Photo,Author,Content", "title", "Tweets");
if (twResult != null)
{
foreach (TweetItem item in twResult.items)
{
Graphic graphic = new Graphic();
graphic.Geometry = (new MapPoint(item.geoLocation.x, item.geoLocation.y, new SpatialReference(4326))).GeographicToWebMercator();
graphic.Attributes.Add("title", item.author.authorName);
graphic.Attributes.Add("photoUrl", item.authorLinks[1].linkUrl);
graphic.Attributes.Add("authorUri", item.author.authorUri);
graphic.Attributes.Add("content", item.content);
graphic.Symbol = twitterSymbol;
graphic.MapTip = twitterTipTemplate;
graphicsLayer.Graphics.Add(graphic);
twitterSet.Add(graphic);
}
this.FeatureSets.Add(twitterSet);
this.ToggleWidgetContent(1);
}
}
this.IsBusy = false;
}
private void Query_ResultReady(object sender, QueryResultEventArgs args)
{
this.ClearGraphics(2); // Toggle to Results Panel
if (args.Results != null && args.Results.Features.Count > 0)
{
isFirstLoad = true; // Suppress filter results by map extent or pan map
QueryResultMessage.Visibility = Visibility.Collapsed;
FeatureSet fset = args.Results;
Symbol symbol = ChooseSymbol(fset.GeometryType.ToString(), false);
GeoFeatureCollection dataset = new GeoFeatureCollection(args.QueryLayer.OutputFields, args.QueryLayer.OutputLabels, fset.DisplayFieldName, args.QueryLayer.Title);
foreach (Graphic feature in fset.Features)
{
feature.Symbol = symbol;
feature.Geometry.SpatialReference = fset.SpatialReference;
this.GraphicsLayer.Graphics.Add(feature);
dataset.Add(feature);
}
this.FeatureSets.Add(dataset);
this.GraphicsTipTemplate = args.QueryLayer.MapTipTemplate;
this.MapControl.ZoomTo(GeometryTool.ExpandGeometryExtent(this.GraphicsLayer.FullExtent, 0.25));
}
else
{
QueryResultMessage.Visibility = Visibility.Visible;
QueryResultMessage.Text = string.Format("Sorry! {0}", (string.IsNullOrEmpty(args.ErrorMsg)) ? "No features are found." : args.ErrorMsg);
}
this.IsBusy = false;
}
private void SubmitReportButton_Click(object sender, RoutedEventArgs e)
{
if (lstGraphicWidget.SelectedIndex == -1)
{
MessageBox.Show("Please select a widget with selected graphic", "Message", MessageBoxButton.OK);
return;
}
double bufferDistance = 0;
if (!double.TryParse(txtBufferDistance.Text, out bufferDistance))
{
MessageBox.Show("Buffer distance is invalid. Please input a valid number", "Message", MessageBoxButton.OK);
return;
}
string widgetTitle = (string)lstGraphicWidget.SelectedItem;
WidgetBase widget = WidgetManager.FindWidgetByTitle(widgetTitle);
Graphic centerGraphic = widget.SelectedGraphic;
GeoFeatureCollection dataset = widget.FindFeatureSetWithSelection();
string displayField = (dataset != null) ? dataset.DisplayFieldName : "";
string featureLayer = (dataset != null) ? dataset.FeatureLayerName : "";
if (centerGraphic.Attributes.ContainsKey("Address")) //Locator
{
addressValue = (string)centerGraphic.Attributes["Address"];
}
else if (centerGraphic.Attributes.ContainsKey(displayField))
{
addressValue = (string)centerGraphic.Attributes[displayField];
}
if (bufferDistance > 0)
{
this.IsBusy = true;
string bufUnits = (string)(lstBufferUnits.SelectedItem as ComboBoxItem).Content;
locationName = string.Format("{0} {1} around {2}", txtBufferDistance.Text, bufUnits.ToLower(), featureLayer);
CreateBufferZone(bufferDistance, centerGraphic, bufUnits, locationName);
}
else if (centerGraphic.Geometry is Polygon)
{
this.IsBusy = true;
centerGraphic.Geometry.SpatialReference = new SpatialReference(this.MapSRWKID);
locationName = string.Format("Within {0}", featureLayer);
centerGraphic.Attributes.Add("AREA_ID", locationName);
AuthenticateUser(centerGraphic);
}
}
/// <summary>
/// Remove a dataset from the Grid
/// </summary>
protected virtual void RemoveDataset(GeoFeatureCollection dataset)
{
if (this.LeftWindow != null && dataset != null)
{
StackPanel leftStack = this.LeftWindow as StackPanel;
UIElement valueStack = leftStack.Children.FirstOrDefault(child => (child as StackPanel).Tag == dataset);
if (valueStack != null)
{
int k = leftStack.Children.IndexOf(valueStack);
if (k > 0) //
{
leftStack.Children.RemoveAt(k); // Remove Value Stack
leftStack.Children.RemoveAt(k - 1); // Remove Title Stack
}
}
}
}
/// <summary>
/// Select a Graphic item and show its attributes
/// </summary>
/// <param name="graphic">The graphic be selected</param>
public void SelectItem(Graphic graphic)
{
bool found = false;
if (this.LeftWindow is StackPanel)
{
StackPanel leftStack = this.LeftWindow as StackPanel;
SimpleLinkButton linkOld = leftStack.Tag as SimpleLinkButton;
if (linkOld != null)
{
linkOld.IsActive = false;
}
for (int i = 0; i < leftStack.Children.Count / 2; i++)
{
StackPanel titleStack = leftStack.Children[i * 2] as StackPanel;
StackPanel valueStack = leftStack.Children[(i * 2) + 1] as StackPanel;
GeoFeatureCollection dataset = valueStack.Tag as GeoFeatureCollection;
foreach (SimpleLinkButton link in valueStack.Children)
{
if (link.Tag == graphic)
{
leftStack.Tag = link;
link.IsActive = true;
this.SelectedItem = graphic;
FillDataInRightWindow(graphic, dataset);
found = true;
break;
}
}
if (!found)
{
ToggleButton toggler = titleStack.Children[0] as ToggleButton;
if (valueStack.Visibility == Visibility.Visible)
{
ToggleLeftFeatureList(toggler);
}
}
}
}
}
private void YouTubeRequest_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
if (e.Error != null)
{
MessageBox.Show(e.Error.Message);
}
else
{
this.FeatureSets.Remove(youtubeSet);
YouTubeResult ytResult = YouTubeResult.Deserialize(e.Result);
youtubeSet = new GeoFeatureCollection("title,thumbnail,description,publishDate,playerUrl", "Title,Thumbnail,Description,Publish Date,Player Url", "title", "YouTube");
if (ytResult != null)
{
foreach (YouTubeItem ytItem in ytResult.items)
{
Graphic graphic = new Graphic();
graphic.Geometry = (new MapPoint(ytResult.items[0].geometry.rssPoint.x, ytResult.items[0].geometry.rssPoint.y, new SpatialReference(4326))).GeographicToWebMercator();
graphic.MouseLeftButtonDown += new MouseButtonEventHandler(YouTube_MouseLeftButtonDown);
graphic.Attributes.Add("title", ytItem.media.title);
graphic.Attributes.Add("thumbnail", ytItem.media.thumbnail[1].url); //hddefault.jpg (480 x 360)
graphic.Attributes.Add("aspectRatio", ytItem.media.aspectRatio);
graphic.Attributes.Add("description", ytItem.media.description);
graphic.Attributes.Add("publishDate", ytItem.media.publishDate);
graphic.Attributes.Add("contentUrl", ytItem.media.content[0].source);
graphic.Attributes.Add("playerUrl", "http://www.youtube.com/watch?v=" + ytItem.media.videoID);
graphic.Symbol = youtubeSymbol;
graphic.MapTip = youtubeTipTemplate;
graphicsLayer.Graphics.Add(graphic);
youtubeSet.Add(graphic);
}
this.FeatureSets.Add(youtubeSet);
this.ToggleWidgetContent(1);
}
}
this.IsBusy = false;
}
private void LeftFeatureLink_Click(object sender, RoutedEventArgs e)
{
if (sender is SimpleLinkButton)
{
StackPanel leftStack = this.LeftWindow as StackPanel;
SimpleLinkButton leftLinkOld = leftStack.Tag as SimpleLinkButton;
if (leftLinkOld != null)
{
leftLinkOld.IsActive = false;
}
SimpleLinkButton leftLinkNew = sender as SimpleLinkButton;
leftStack.Tag = leftLinkNew;
leftLinkNew.IsActive = true;
StackPanel valueStack = leftLinkNew.Parent as StackPanel;
GeoFeatureCollection dataset = valueStack.Tag as GeoFeatureCollection;
this.SelectedItem = (Graphic)leftLinkNew.Tag;
FillDataInRightWindow(this.SelectedItem, dataset);
OnSelectedItemChange(new SelectedItemChangeEventArgs(this.SelectedItem));
}
}
private void AddGeoRSSGraphics(List <GeoRSSItem> rssItems)
{
if (this.GraphicsLayer == null)
{
MessageBox.Show("GraphicsLayer for this widget is not created. Please set property HasGraphics 'true'."); return;
}
GeoFeatureCollection dataset = new GeoFeatureCollection("Title", "GeoRSS");
foreach (GeoRSSItem rssItem in rssItems)
{
Graphic graphic = new Graphic();
graphic.Geometry = rssItem.Geometry;
graphic.Symbol = ChooseSymbol(rssItem.Geometry);
graphic.Attributes.Add("Title", rssItem.Title);
graphic.Attributes.Add("Description", rssItem.Description);
graphic.Attributes.Add("PubDate", rssItem.pubDate);
graphic.Attributes.Add("Link", rssItem.Link);
this.GraphicsLayer.Graphics.Add(graphic);
dataset.Add(graphic);
}
this.FeatureSets.Add(dataset); // Make it available for the Print Widget
}
private void IdentifyTask_ExecuteCompleted(object sender, IdentifyEventArgs e)
{
string mapName = (string)e.UserState;
string preName = "^?^";
GeoFeatureCollection features = null;
foreach (IdentifyResult result in e.IdentifyResults)
{
if (result.LayerName != preName)
{
if (features != null)
{
this.FeatureSets.Add(features);
}
AddToGraphicsLayer(result.Feature, (string)result.Value, result.DisplayFieldName, result.LayerName);
features = new GeoFeatureCollection(result.DisplayFieldName, result.LayerName, mapName);
features.Add(result.Feature);
preName = result.LayerName;
}
else if (features != null)
{
AddToGraphicsLayer(result.Feature, (string)result.Value, result.DisplayFieldName, result.LayerName);
features.Add(result.Feature);
}
}
// Add the last layer results
if (features != null)
{
this.FeatureSets.Add(features);
}
this.IsBusy = false;
}
protected virtual void FillDataInRightWindow(Graphic feature, GeoFeatureCollection dataset)
{
Grid rightGrid = null;
if ((this.RightWindow != null) && (this.RightWindow is Grid))
{
rightGrid = this.RightWindow as Grid;
rightGrid.Children.Clear();
rightGrid.RowDefinitions.Clear();
rightGrid.ColumnDefinitions.Clear();
}
else
{
rightGrid = new Grid();
this.RightWindow = rightGrid;
}
if (feature == null)
{
return;
}
rightGrid.ColumnDefinitions.Add(new ColumnDefinition());
rightGrid.ColumnDefinitions.Add(new ColumnDefinition());
int k = 0;
string value = "";
TextBlock fieldBlock = null;
TextBlock valueBlock = null;
HyperlinkButton valueLink = null;
Dictionary <string, string> fieldAlias = (dataset == null) ?
(new Dictionary <string, string>()) : StringHelper.ConvertToDictionary(dataset.OutputFields, dataset.OutputLabels, ',');
if (fieldAlias.Count == 0)
{
foreach (string key in feature.Attributes.Keys)
{
if (!key.StartsWith("Shape"))
{
fieldAlias.Add(key, key);
}
}
}
foreach (string key in fieldAlias.Keys)
{
rightGrid.RowDefinitions.Add(new RowDefinition()
{
Height = GridLength.Auto
});
fieldBlock = new TextBlock()
{
Text = fieldAlias[key] + ":", FontWeight = FontWeights.Bold, HorizontalAlignment = HorizontalAlignment.Left, Margin = new Thickness(2, 1, 2, 1)
};
rightGrid.Children.Add(fieldBlock);
Grid.SetColumn(fieldBlock, 0);
Grid.SetRow(fieldBlock, k);
value = (feature.Attributes.ContainsKey(key) && feature.Attributes[key] != null) ? feature.Attributes[key].ToString() : "";
if (value.StartsWith("http://", StringComparison.CurrentCultureIgnoreCase))
{
valueLink = new HyperlinkButton()
{
FontWeight = FontWeights.Normal, Margin = new Thickness(2, 1, 2, 1)
};
valueLink.NavigateUri = new Uri(value);
valueLink.TargetName = "_blank";
Grid.SetColumn(valueLink, 1);
Grid.SetRow(valueLink, k);
if (value.EndsWith(".jpg", StringComparison.CurrentCultureIgnoreCase) || value.EndsWith(".png", StringComparison.CurrentCultureIgnoreCase))
{
rightGrid.RowDefinitions[k].Height = new GridLength(160);
valueLink.Content = new Image()
{
Source = new BitmapImage(new Uri(value, UriKind.Absolute)), Height = 160, Stretch = Stretch.Uniform
};
}
else
{
valueLink.Content = value;
}
rightGrid.Children.Add(valueLink);
}
else
{
valueBlock = new TextBlock()
{
FontWeight = FontWeights.Normal, HorizontalAlignment = HorizontalAlignment.Left, Margin = new Thickness(2, 1, 2, 1)
};
Grid.SetColumn(valueBlock, 1);
Grid.SetRow(valueBlock, k);
valueBlock.Text = value;
valueBlock.MaxWidth = 300;
valueBlock.TextWrapping = TextWrapping.Wrap;
rightGrid.Children.Add(valueBlock);
}
k++;
}
}
/// <summary>
/// Bind a dataset to the Grid
/// </summary>
protected virtual void BindDataset(GeoFeatureCollection dataset)
{
if ((dataset != null) && (dataset.Count > 0))
{
StackPanel leftStack = null;
if ((this.LeftWindow != null) && (this.LeftWindow is StackPanel))
{
leftStack = this.LeftWindow as StackPanel;
}
else
{
leftStack = new StackPanel()
{
Orientation = Orientation.Vertical
};
this.LeftWindow = leftStack;
}
StackPanel titleStack = new StackPanel()
{
Orientation = Orientation.Horizontal, Margin = new Thickness(1, 1, 1, 1)
};
StackPanel valueStack = new StackPanel()
{
Orientation = Orientation.Vertical, Margin = new Thickness(15, 0, 0, 0), Tag = dataset
};
// Create a head stack containing a toggle button and a feature layer name block
ToggleButton toggler = new ToggleButton()
{
Tag = valueStack, Width = 16, Height = 14, VerticalAlignment = VerticalAlignment.Top
};
toggler.Background = new SolidColorBrush(Colors.Transparent);
toggler.Foreground = new SolidColorBrush(Colors.Gray);
toggler.MouseOverColor = new SolidColorBrush(Colors.Blue);
toggler.Click += new RoutedEventHandler(LeftFeatureListToggler_Click);
TextBlock titleText = new TextBlock()
{
TextWrapping = TextWrapping.Wrap
};
titleText.Text = (string.IsNullOrEmpty(dataset.FeatureLayerName)) ? "Unknown Feature" : dataset.FeatureLayerName;
if (!string.IsNullOrEmpty(dataset.DataSourceName))
{
titleText.Text += "\n(" + dataset.DataSourceName + ")";
}
titleStack.Children.Add(toggler);
titleStack.Children.Add(titleText);
// Create a list stack of display field values
string displayValue = "";
SimpleLinkButton valueLink = null;
foreach (Graphic feature in dataset)
{
displayValue = (string)feature.Attributes[dataset.DisplayFieldName];
valueLink = new SimpleLinkButton()
{
Tag = feature, Cursor = Cursors.Hand, Margin = new Thickness(1, 1, 1, 1)
};
valueLink.Text = (string.IsNullOrEmpty(displayValue)) ? "[Empty]" : displayValue;
valueLink.Click += new RoutedEventHandler(LeftFeatureLink_Click);
valueLink.MouseEnter += new MouseEventHandler(LeftFeatureLink_MouseEnter);
valueLink.MouseLeave += new MouseEventHandler(LeftFeatureLink_MouseLeave);
valueStack.Children.Add(valueLink);
//Select the first one
if (SelectedItem == null)
{
SelectedItem = feature;
leftStack.Tag = valueLink;
valueLink.IsActive = true;
FillDataInRightWindow(feature, dataset);
OnSelectedItemChange(new SelectedItemChangeEventArgs(feature));
}
}
leftStack.Children.Add(titleStack);
leftStack.Children.Add(valueStack);
this.SelectItem(dataset[0]);
}
}
